Yulia Volodymyrivna Tymoshenko (Ukrainian: Ю́лія Володи́мирівна Тимоше́нко, pronounced [ˈjulijɑ ʋɔlɔˈdɪmɪriʋnɑ tɪmɔˈʃɛnkɔ], née Hrihyan (Ukrainian: Грігян), born 27 November 1960), is a Ukrainian politician. She was the Prime Minister of Ukraine from 24 January to 8 September 2005, and again from 18 December 2007 to 11 March 2010. Tymoshenko is the leader of the All-Ukrainian Union "Fatherland", which is the largest opposition political party in Ukraine.